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Use performance and working principle of vertical check valve

Use performance of vertical check valve: This valve is used as a device to prevent the backflow of the medium on industrial pipelines. Performance specifications: Test pressure: nominal pressure (MPa) 1.6 / 2.5 / 4.0; 150Lb-900Lb Shell test: 2.4/ 3.8 / 6.0; psig425-psig3250 Seal test: 1.8 /2.8/ 4.4; psig300-psig2400 Body material: WCB(C) /CF8(P) /CF 8M […]

What is vertical check valve

Vertical check valve: Due to the pressure of the medium at the inlet end of the pipeline, the valve can be opened or closed by overcoming the spring resistance. When the medium pressure at the inlet end is lower than that at the outlet end, the spring pushes the valve core to the valve seat […]

Stainless steel vertical check valve

Overview of Stainless steel vertical check valve: H42W stainless steel flanged vertical check valve is a valve whose disc slides along the center line of the valve body. Pipeline vertical check valve is a new type of valve. It has the characteristics of simple structure, few parts, light weight, and good manufacturability. It is one […]

Industry development prospects of check valve

China’s check valve industry chain is numerous, but it is not a powerful valve country. Generally speaking, my country has entered the ranks of the world’s valve powers, but in terms of product quality, there is still a long gap between my country and the valve powers. The industry’s low concentration of production, low R&D […]

Selection criteria for check valves

Selection criteria for check valve: The selection criteria for check valves are as follows: 1. In order to prevent the medium from flowing back, check valves should be installed on equipment, devices and pipelines; 2. Check valves are generally suitable for clean media, not for media containing solid particles and high viscosity; 3. Generally, horizontal […]

Process design of check valve

Process design of check valve: (1) The quality control of the main body blank. All parts of this valve are forgings. The forging process is carried out in strict accordance with the forging process regulations and process cards. The initial forging temperature, final forging temperature, deformation degree and deformation speed are strictly controlled, and the […]

Installation method and precautions of check valve

Check valve installation method: 1. Swing check valve: The disc of the swing check valve is disc-shaped and rotates around the shaft of the valve seat passage. Because the inner passage of the valve is streamlined, the flow resistance is smaller than that of the lift check valve. It is suitable for large-caliber occasions where […]

Classification of check valves

Classification of check valves: The check valve that opens or closes by the force of the medium flow to prevent the medium from flowing back is called a check valve. Check valves belong to the category of automatic valves, which are mainly used in pipelines where the medium flows in one direction, and only allow […]

Check valve and its working principle

What is check valve? Check valve refers to a valve whose opening and closing parts are circular discs and rely on its own weight and medium pressure to generate actions to block the back flow of the medium. It is an automatic valve, also called check valve, one-way valve, return valve or isolation valve. The […]

Detailed introduction of soft sealing butterfly valve-(3)

Features of soft sealing butterfly valve: 1. Small and light, easy to disassemble and repair, and can be installed in any position. 2. The structure is simple and compact, the operating torque is small, and the 90-degree rotation opens quickly. 3. The flow characteristics tend to be straight, and the regulation performance is good. 4. […]